The „Download List with Icons“ plugin supports various types of icons. These are described in more detail here.
Fonts as icon sources
It is possible to use fonts as a source for icons. The plugin already provides 3 of these:
- bootstrap
- Dashicons
- FontAwesome
It is also possible to store individual fonts for icons. To do this, you would need to create an icon set, but you must already store the URL for the font file in the icon set. You can then specify the Unicode for the respective icon in the field provided for the icons instead of selecting a graphic file.
Graphic icons
For many, this is certainly the easier option: using graphics as icons. The procedure for this is here described.
Generate icons
It would also be possible to generate icons. However, there are no options for this in the plugin, but you can extend it accordingly with WordPress hooks. I have done this here, for example, with an example for PDF preview images: https://github.com/threadi/download-list-preview
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